This fix works perfectly. I made the changes he identifies in W7 (not Vista as he mentions), spefically cange security options a follows: "Change the setting from "Send NTMLv2 response only" to "Send LM & NTLM - use NTLMv2 session if negotiated". Apparenly when I upgraded from Vista Business to W7 Pro this was changed back to a default setting. Now I can see the files on the MacBooks on my workgroup network.


bigstu said:
Found a fix!

Windows 7 and Mac OS X Sharing

FIXED IT!!!

Accessing Mac OS X Windows Sharing from Windows 7
Windows 7 will not work with Mac OS X Windows file sharing support by default. If you attempt to access a folder shared from Mac OS X, Vista will display a logon error repeatedly.
The problem is that Vista, by default, will only use NTLMv2 for authentication, which is not supported by Mac OS X's Windows Sharing service.
The other problem is the Minimum Session Security for NTVLM SSP based Clients.
To get around this:
1. In Vista, open the Control Panel
2. Switch to "Classic" view
3. Double-click Administration Tools
4. Double-click Local Security Policy
5. Or Secpol.msc
6. Expand "Local Policies" and select "Security Options"
7. Alternate : Type secpol.msc to get editor up then
8. Locate "Network Security: LAN Manager Authentication Level" in the list and double-click it.
9. Change the setting from "Send NTMLv2 response only" to "Send LM & NTLM - use NTLMv2 session if negotiated"
10. Network Security: Minimum session security for NTLM SSP Based (including secure RPC) Clients
11. Change the setting from "require 128 bit" to unchecked (No Minimum)
12. Click OK


I had tried this before EXCEPT steps 10 & 11 which apparently is the only difference between Vista & 7. Bang- works like a charm.